G1801DG

Overview

The G1801DG is a single-port pulse transformer designed for 10/100/1000 BASE-T Ethernet applications. It features a through-hole mounting configuration and complies with IEEE 802.3 and ANSI X3.263 standards. The component operates within a temperature range of 0°C to +70°C. Key electrical specifications at 25°C include an open-circuit inductance of 350µH measured at 100kHz with 0.1Vrms and 8mA DC bias. The turns ratio is specified as 1CT:1CT with ±5% tolerance. Insertion loss does not exceed -1.1dB from 0.5-100MHz, while return loss is minimum -18dB from 0.5-40MHz. Common mode rejection ratio is at least -30dB across 0.5-100MHz.

Feature Summary

• Supports Gigabit Ethernet data transmission speeds up to 1000 Mbps
• Provides galvanic isolation via high-potential voltage rating
• Complies with international networking interface standards

Applications

• Single-port Ethernet network interfaces
• Industrial communication equipment
• Consumer networking hardware

Procurement Notes

Verify the specific datasheet version A0 when sourcing components to ensure alignment with mechanical dimensions and electrical tolerances. Confirm that the through-hole package matches the target PCB footprint requirements. Ensure the operating environment remains within the specified 0°C to +70°C range for reliable performance. Cross-reference the manufacturer part number with authorized distributors to avoid counterfeit products.

Selection Notes

Select this component for designs requiring a single-port magnetic solution for Gigabit Ethernet connections. The through-hole format suits prototyping or high-reliability manufacturing processes. Consider the physical size constraints against the available board space. Evaluate the thermal environment to ensure it stays within the operational limits defined by the manufacturer specifications.

Part Context

This component belongs to the G18XXDG series of magnetic components manufactured by Mentech. These parts are engineered for network connectivity applications requiring robust signal integrity. The series includes variants for different port configurations and form factors. Mentech produces these devices to meet the demands of modern communication infrastructure.

Replacement Considerations

No public confirmed substitute part numbers are available in the provided documentation.